Relief-valve.



Patented Aug. 3, 1915.

I H. BEES.

RELIEF VALVE. APPLICATION FILED FEB.25, |913.

WILLIAIE H. BEES,

' RELIEF-veus.

. To all 'whom t may concern.'

- citizen of the lUnited States,

tremity of Be it known that I, WIILIAM H. BEES, a and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new anduseful Improvements in Relief-Valves, of which the following is a specification.

My invention relates to valves, and more specifically to relief valves designed for use especially in beer delivery apparatus employed in breweries.

The object of my invention is the product'ion of a relief valve of the character mentioned which will"be of. durable and economical construction, and eicient in operation.

Other objects will appear hereinafter.

The invention consists -in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing forming a part of this -specicatiom and in which,

Figure embodying my invention,

1 is a vertical section vofla valve the same being .taken on substantially line :v -w of Eig.'2,

plan view of the valve, par- Fig. 2 is a top and Fig. 3 1s a fragmentary tially in section,

detail side elevation showing-the outlet nipple of the valve.

The preferred form ofe construction as illustrated in the drawing comprises a valve casing 1 and a cap 2 connected by bolts or other securing devices 3, said bolts passing through a ring 4 which is nection with the base of cap 2. The interior ofthe valve casingis dividedby a partition 5f into inlet and outlet chambers 6 and 7 said chambers communicating as shown with inlet and -outlet pipes.` The partition 5 is provided with an openingA 8 which establishes communication between the chambers 6 and 7 Arranged over the opening 8 is a valve 9 adapted when in lowered position to seat over said opening to prevent passagel therethrough. The valve .91s carried at the lower end ofa'stem 10 which is mounted for spring12 the lower end of which engages a nut 13 provided at the upper exstem 10, the upper end of said spring engaging against a fianged nut 14 which is held inoperative positionby a in threaded con-Q 'of said screw and thesupper' end portion o 2. Said cover is adapted to.

fring 4 and Patented Ang. 3, 1915.

Application filed. February 25, 1913. Serial No. 750,588.

screw 15 threaded into cap member 2. lThe arrangement is suc that-the spring 12 willserve normally to hold-the valve `9 seated or in closing position. By adjusting the screw 15 the tension of the spring 12 may be varied to exert a greater or less pressure tending to close the valve, as will be readily understood. With this arrangement then, order to open the valve to permit the passage through the opening 8, it is necessary to overcome the influence of the spring 12. This influence of the spring 12 is counteracted when the deviceis in use by the pressure in the chamber 6 acting 'against the under side of a diaphragm 16 the peripheral portion of which is secured in position between' the upper side of the casing '1, and the ring 4 and adjacent edge of cap 2 ofthe valve casing, the center of said diaphragm being connected with the upperend of the it will be seen that in as will be observed,

valve stem 10 by means of nuts 17. It should force exerted by the spring 12, the diaphragm 16 will be flexed upwardly causing the valve to -be elevated to open position. Thus, in using the device when the pressure at the inlet side of the valve exceeds apredetermined point ,or exceeds the pressure of the spring 12 upon the valve 9, the latterwill be opened to relieve this pressure.

The upper end of the screw 15 projects' exteriorlya and is squared, as is shown, to

permit the engagement thereof by a wrench for adjusting said screw to, regulate the tension of the spring 12. In order to prevent tampering with the'screw 15 after the `screw has been adjusted, a cover 18 is provided which is adapted to fit over said' end the casing part rest upon; the upper side of the conical portion of the casing part 2 and extends over the upper edge of part 1, the lower edge of the flange portion of said cover being provided with inwardly turned fingers 19 which are notches 20 provided in the periphery of The arrangement is such as adapted to engage Irecesses or" the upper end vportion of the caslng part 1,

and lso sthat after passage ofv the ingers-19 through said recesses and turning the cover through a partial rotation, the latter will locked in position against removal.

In order to lock the cover against rotary movement, such asis necessary to effect disengagement thereof, Ithe baseportion of said cover and the peripheryof the upper end portion of the casing 1 are provided`- with registerable perforated ears 21 and 22 respectively. The ears 21 and 22 are positioned for registrationwith each other when thejngers 19 are locked with the pe riphery of the upper end portion of casing part 1, a suitable lock 23 being employed for lockingsaid ears. in registration. In use, the key to the lock 23 will be in the possession of the Government inspector, and so that access to the screw 15 for adjusting "the same may be had only by the inspector.

Arranged below the valve 9; is a vertically movable Din 24 mounted in a plug 25 which `closes the underside of the casing Dart l.

a A packing v26 is provided at the under side normally to assume a of the plug 25 for preventing leakage around said pin 24. The pin 24 is so arranged that, upon upward movement thereof, the same' will engage against the under side of valve 9 to move the latter to open position, in ordery to permit of passage through the pipe in which the relief valve is interposed for Jcleansing and flushing the same when the beer delivering appa-I 30 the upper end of which is loosely pivoteg Aat 31 in said nipple. -\Said blade is adapte vertical position, the

threaded Ain said lcap stantially as described In testimonywhereof I have signed my passage of liquid through said nipple causing said blade to be rocked under the.in` iuence of the flowing liquid. Operatively connected with the blade 30 is an exteriorly positioned hand or the position vof theblade 30 will be indicated, and hence the position of the valve 9, Whether vopen or. closed. e .f

While I have illustrated and described the preferred form of construction vfor carrying my invention into effect, this is capable of variation-and modification Without' departing from the spirit of the invention. I, therefore, do nbt wish `tobe limited to the precise details of construction set forth, but desire to avail myself of such vaniations and modications as come within the scope of the' appended claim.

Hav-ing described my invention what I claim as new and desire to secure` by Letters Patent is:

- In a regulator valve of the class described a 'valve casing; a diaphragm across the upper side of said valve casing; a valve in said casingtconnected with said diaphragm; a ring secured to the upper side ofsaid casing and clamping said diaphragmto said casing, said ring being threaded on its inner side; and a cap having an internal diameter substantially equal to^that of the operative portion of the diaphragm and threaded in the threaded portion of said ring to cover said diaphragm; an adjusting. screw cap and having a flange fitted over th upperedge of said valve casing; and fingers lockingly engaging under the latter, subname 'to this specification in the presence oftwo subscribing witnesses.

WILLIAM H. BEEs.v

Witnesses: v

A. A. Orson,

. IEIELEN F. LILLIs.

indicator 32 wherebyand connected with said.4 diaphragm; a locln'ng cap inclosing sai 

